30319 Tapered Roller Bearing
30319 is a high‑thrust single‑row tapered roller bearing belonging to metric 303 series. Compared with standard 302 series bearings, it features a steeper roller angle to deliver enhanced one‑way axial thrust performance while retaining solid radial load capability. The separable cone‑cup assembly allows easy disassembly and manual preload adjustment during shaft assembly and field equipment overhaul. Produced from high‑purity GCr15 bearing steel, this unit delivers stable running performance under heavy mixed loads and recurring shock conditions, widely sourced by heavy‑equipment repair contractors and global OEM manufacturing projects.
30319 Full Technical Specs
表格
| Parameter | Value |
|---|---|
| Bearing Type | Single Row Tapered Roller Bearing |
| Model | 30319 |
| Bore d | 95 mm |
| Outer Diameter D | 200 mm |
| Total Width T | 49.5 mm |
| Inner Ring Width B | 45 mm |
| Outer Ring Width C | 38 mm |
| Approx Weight | 6.7 kg |
Core dimension: 95 × 200 × 49.5 mm (d × D × T)
Key Product Strengths
Increased taper angle delivers outstanding unidirectional thrust performance better than ordinary 302 series bearings
Fully detachable cone‑cup layout simplifies component separation, field inspection and preload fine‑tuning
Precision‑ground roller and raceway surfaces reduce friction heat generation and slow wear progression
Optional P0, P6, P5 accuracy grades fit general‑purpose transmission and high‑precision operating requirements
Open‑type construction works well with high‑temperature grease lubrication and circulating oil lubrication systems
Stamped steel cage maintains stable roller arrangement under frequently fluctuating heavy‑load cycles
Real‑World Application Scenarios
30319 tapered roller bearings are widely adopted for rotating assemblies requiring high thrust resistance: medium‑heavy vehicle drive axle hubs, high‑torque industrial gear reducers, mining auxiliary transmission units, large‑size agricultural machinery, engineering equipment gearboxes and heavy‑load conveyor main shafts. For working conditions with bidirectional axial thrust, it is commonly installed in opposed paired configurations.
Supply & Custom Options
Boyuan Bearing manufactures and holds stock for 30319 tapered roller bearings. We support small‑batch sample testing orders, large‑volume export shipments and OEM custom demands. Special internal clearance and alternative cage styles can be supplied according to your actual working‑condition parameters.
Contact Boyuan Bearing for 30319 stock updates, complete technical datasheets and competitive wholesale pricing.
